Calculator-sized Pocket PC[edit]

Note: Not to be confused with the 'Pocket-sized PC's (Can otherwise be termed as 'Handheld PC's'), which usually had larger screens, whereas these other pocket PC's designed to be like advanced calculators (Could be termed as 'Programmable Calculators') had just few screen lines' worth of display.

These display screens were built on dot-matrix LCDs technology. Many calculators of this type are monochrome LCD, some are four-color (red or orange, green, blue, and black), or, in the case of some machines at the top of the line as of February 2015, colour similar to monitors displaying 8 or 16 bit graphics. As they are used for graphing functions, the screens of these machines are pixel-addressable. Some have a touch screen, buzzers or other sound producers, internal clocks, modems or other connectivity devices including IrDA transceivers, several types of ports for peripherals like printers, and ports for memory cards of a number of types.

• SeeWikipedia's list of non pocket PC's engineered as calculators
• Emulators for three Sharp calculator-based PC's &other applications

Palmtop PC[edit]

A Palmtop PC was an approximately pocket calculator-sized, battery-powered computer compatible with the IBM Personal Computer in a horizontal clamshell design with integrated keyboard and display. It could be used like a subnotebook, but was light enough to be comfortably used handheld as well. Most Palmtop PCs were small enough to be stored in a user's shirt or jacket pocket.

Palmtop PCs distinguish from other palmtop computers by using a mostly IBM-compatible PC architecture and BIOS as well as an Intel-compatible x86 processor. All such devices were DOS-based, with DOS stored in ROM. While many Palmtop PCs came with a number of PDA and office applications pre-installed in ROM, most of them could also run generic, off-the-shelf PC software with no or little modifications. Some could also run other operating systems such as GEOS, Windows 1.0-3.0 (in Real mode only), or MINIX 2.0.

Most Palmtop PCs were based on a static hardware design for low power consumption and instant-on/off without a need to reboot.

• SeeWikipedia's list of Palmtop PCs

Also See[edit]

• Android /iOS - This list dose not include devices that use the iOS or Android, for those, go to their respective pages.
• Desk-size computers / Supercomputers / Mainframes - The standard size and design that most early computers used do to technological limitations later became the standard forsupercomputers in the modern era.
• Miscellaneous Computers

Resources[edit]

• Old-Computers.com (Most up-to-date museum of computers. ~1244 systems.)
• Home Computer Museum (Very large catalog of home computers, ~800. Probably last updated in 2007.)

This article is a never-ending list. It will always need updates and will likely have new content added to it on a consistent basis. Because of this, it can never truly be a finished article.

• NEL
• Computers
• Various emulation